For many women past menopause, bladder infections stop being a once-in-a-while nuisance and start coming back again and again. A study of nearly 1.9 million women suggests a simple, underused treatment could change that.
Women with recurring urinary tract infections who were prescribed vaginal estrogen had markedly lower rates of sepsis, hospitalization, and death than women who were not, according to a study published in the journal Urology and reported by CTV News. The researchers, from Albany Medical College in New York, found lower rates of all three outcomes in every age group they examined. The catch, and the reason doctors are calling it a wake-up call, is that doctors prescribed the treatment to only about 5 percent of the women.
Key takeaways
Researchers reviewed the American health records of nearly 1.9 million women who had at least two urinary tract infections.
Women prescribed the treatment within two months of a second infection had lower rates of sepsis, hospitalization, and death across every age group over eight years.
Only about 5.1 percent of the women received a prescription, and Canadian experts say uptake here also appears low.
The Canadian Urological Association updated its guideline in 2025 to recommend treatment for women around and after menopause with recurring infections.
The study shows a strong link without proving cause, and the right choice still depends on your own history.
Why do infections keep coming back after menopause?
After menopause, estrogen levels drop, and that change affects much more than hot flashes. The tissues of the vagina and urinary tract become thinner, drier, and more fragile, and the natural balance of bacteria shifts in ways that make it easier for infection-causing bacteria to settle in and multiply.
The scale of the problem is large. Up to 50 to 60 percent of adult Canadian women have at least one urinary tract infection in their lifetime, according to figures reported by CTV News. Between 25 and 33 percent of them go on to have infections that keep coming back. Infections account for about 500,000 doctor visits in Canada each year, according to the Kidney Foundation of Canada. Yet a survey cited by the Menopause Foundation of Canada found that 82 percent of Canadian women did not recognize the link between menopause and these infections.
The treatment comes as a low-dose cream, tablet, or ring placed in the vagina, and it helps restore the healthier tissue that keeps bacteria in check. Studies going back to the 1990s show it reduces how often infections return, and the Canadian Urological Association guideline now recommends it for women around and after menopause with recurring infections. If you are still sorting out what causes the burning in the first place, our guide to what painful urination actually means walks through it.
What did the study of 1.9 million women find?
The team reviewed the electronic health records of 1.9 million women who had at least two urinary tract infections. They compared women who received a prescription within two months of their second infection with women who never received one, then followed both groups for up to eight years. Sepsis, hospital admission, and death were all lower among the women who got the prescription, in every age group studied.
Only about 1 in 20 women with recurring infections in the study received the treatment within two months
There are important limits to keep in mind. The study was observational, meaning it looked back at health records instead of randomly assigning women to treatment, and the comparisons were not adjusted for other differences between the groups. Women who received the prescription may have differed in other ways, including the overall care they received, and the data came from American health records. Even so, the size and consistency of the gap is why specialists such as Dr. Alison Fox-Robichaud, a critical care physician at McMaster University and president of the Canadian Sepsis Foundation, are urging wider awareness.
Is the low-dose treatment the same as hormone therapy?
Many women have never heard of this option for preventing infections, and many others hesitate at anything with the word estrogen in it. The treatment works locally, in the vaginal and urinary area, which makes it different from the whole-body hormone therapy many women remember being cautioned about years ago. Whether it is right for you is still an individual decision, particularly if you have a history of breast cancer or another hormone-sensitive condition. That makes it a conversation to have with a doctor who knows your history.
Which warning signs mean an infection is spreading?
Infections in older women deserve to be taken seriously, because they do not always show up with the classic burning. They can appear instead as new confusion, unusual tiredness, or simply feeling unwell, which is why doctors urge families to act quickly when an older relative changes suddenly. Watch for the warning signs that an infection is spreading toward the kidneys, such as fever, chills, back or side pain, vomiting, or sudden confusion, and get medical care the same day.
Your kidneys clear waste and help balance fluids around the clock, and our guide to what your kidneys do for you explains why protecting them matters. If you are also waking up several times a night to use the bathroom, our guide to nighttime bathroom trips after 50 covers the other common reasons.
What can you ask your doctor this week?
A few simple steps can turn this research into a conversation that protects you. Bring them to your next appointment and ask your doctor directly.
Keep a simple record. Write down when each infection happened, what symptoms you had, and how it was treated.
Ask the direct question. Ask whether vaginal estrogen could help prevent your infections from coming back.
Share your history. Mention any history of breast cancer, blood clots, or other hormone-sensitive conditions so the advice fits you.
Use your pharmacist for fast treatment. In many provinces, pharmacists can assess and prescribe for uncomplicated bladder infections, though recurring infections still deserve a prevention plan.
Watch older relatives closely. Sudden confusion or a sharp change in an older family member can be an infection and needs same-day care.
Frequently asked questions
Is vaginal estrogen safe for most women?
Vaginal estrogen is a low-dose treatment that acts mainly where it is applied, which makes it different from whole-body hormone therapy. Canadian and American urology guidelines recommend it for women around and after menopause with recurring infections. Your doctor will weigh your own history, especially any breast cancer or other hormone-sensitive condition, before suggesting it.
Why do bladder infections increase after menopause?
Falling estrogen levels make the tissues of the vagina and urinary tract thinner, drier, and more fragile. The natural balance of bacteria in the area also shifts, which makes it easier for infection-causing bacteria to settle in. That is why infections that were rare earlier in life can start coming back after menopause.
When should a bladder infection be treated as urgent?
Get same-day care for fever, chills, back or side pain, vomiting, or sudden confusion, since these can mean an infection is spreading toward the kidneys or the bloodstream. In older adults, an infection can show up only as new confusion or unusual tiredness. Call 911 if someone is very drowsy, struggling to breathe, or hard to wake.
Your next step
If bladder infections have become a regular part of your life, you do not have to keep treating them one at a time. The Medimap Health Hub has more on urinary health, and you can book a walk-in clinic visit or find a family practice near you to talk through prevention this week.
Disclaimer: This article is for general information only and is not medical advice. It does not replace a conversation with a doctor or other qualified health professional who knows your history. If you think you are having a medical emergency, call 911 or go to the nearest emergency department.
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